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Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast GM CATEGORY 5 4L80E REBUILD KIT WITH CONVERTER SUNSC-4L80E-CAT5-A

$5,795.00 $5,621.15 Save $173.85

SKU: S02K SC-4L80E-CAT5-A

In Stock
In Stock
Ships by Jun 13
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The Sun Coast Converters SC-4L80E-CAT5-A is an extreme-duty Category 5 Transmission Rebuild Kit for GM 4L80E and 4L85E transmissions, designed for high-horsepower and heavy towing applications. It includes upgraded components such as Alto Red Eagle clutch packs, a 34-element sprag, a Transgo Stage 2 Shift Calibration Kit, Sonnax Smart-Tech Overrun Kit, Sonnax Extreme Duty Forward Clutch Hub, billet input shaft, Aeromet main shaft, and a triple disc billet torque converter.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSun Coast Converters
Part NumberS02K SC-4L80E-CAT5-A

Videos

4L80E Rebuild Kit - Build a Powerful and Long-lasting Engine

4L80E Rebuild Kit - Build a Powerful and Long-lasting Engine
See What's Inside the New Sonnax 4L80-E Performance Pack

See What's Inside the New Sonnax 4L80-E Performance Pack
The 4L80E Rebuild That Will LAST

The 4L80E Rebuild That Will LAST
4L80E Build Strategy for High Performance

4L80E Build Strategy for High Performance
4L80E Rebuild Quick Overview for First Time Builders! You can do this!

4L80E Rebuild Quick Overview for First Time Builders! You can do this!
4L85E vs 4L60E vs 4L80E — Which One REALLY Holds the Power? 💪 The ULTIMATE GM Transmission Showdown!

4L85E vs 4L60E vs 4L80E — Which One REALLY Holds the Power? 💪 The ULTIMATE GM Transmission Showdown!
HOW TO 4l80e TRANSGO HD2 SHIFT KIT INSTALL!!! Intermediate Ring Direct Drum Springs!!! - a21bravo

HOW TO 4l80e TRANSGO HD2 SHIFT KIT INSTALL!!! Intermediate Ring Direct Drum Springs!!! - a21bravo

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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